{"book":"adl0131","page":241,"text":"کتاب ۲۳۰ مساحت\n\nمذکور و نشان عمودی خطوط که میباشد یکی از ایشان باید که بتون\nخط الف ب باشد یعنی اگر از نشان مذکور بطرف یک سمت\nببیند باید که علم که بنام الف نامزد است در نظر آید و اگر از همان\nنشان بطرف دیگر نظر بیندازد باید که علم که بنام ب نامزد است\nدر نظر آید پس درینصورت نقطهٔ مقام تقاطع خط الف ب\nو عمود مطلوبه است لکن اگر علم که بنام ج نامزد است در\nراست نشان مذکور در نظر نیاید پس باید که (کراس مذکور را)\nاز مقام مذکور کنده بالای خط الف ب بطرف دست راست\nو چپ برده در کدام مقام مناسب میخ کنید و ملاحظه کنید که علم که\nبنام ج نامزد است در نظر می آید یا نه پس بعد از آزمایش\nیک نشان معلوم خواهد شد که از ملاحظه یک نشان علم ۱ و\nکه بنام الف و ب نامزد اند در نظر خواهند آمد و از ملاحظه نشان\nدیگر علم که بنام ج نامزد است در نظر خواهد آمد پس از ان مقام\n(کراس)","chars":750,"image":"https://storage.googleapis.com/adl-page-images/adl0131/00241.jpg","first_page":1,"last_page":381,"title":"Kitāb-i ʻIlm i masāḥat کتاب عالم ا مساحت","permalink":"https://afghanpress.org/book/adl0131/241","canvas":"https://afghanpress.org/iiif/adl0131/canvas/241","source":"https://afghanistandl.nyu.edu/books/adl0131/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0131_download.pdf","rights":{"image":{"statement":"Public domain. NYU states: \"All works presented on this website are, unless otherwise indicated, in the public domain. The images available on this website may be freely reproduced, distributed and transmitted by anyone for any purpose, commercial or non-commercial.\"","uri":"http://rightsstatements.org/vocab/NoC-US/1.0/","holder":"New York University Libraries","source":"https://afghanistandl.nyu.edu/about.html","delivery":"Images are served from a copy mirrored by this project, not from NYU's servers, under the reproduction terms above.","endorsement":"This is an independent project. It is not affiliated with, endorsed by, or reviewed by New York University."},"text":{"statement":"Machine-generated transcription, dedicated to the public domain under CC0 1.0. No warranty of accuracy: see the provenance block on every page.","uri":"https://creativecommons.org/publicdomain/zero/1.0/","holder":"Steps Ventures"}},"provenance":{"text_produced_by":"gemini-3.1-pro-preview","thinking_level":"low","read_completed":"2026-08-09","per_page_confidence":null,"per_page_confidence_note":"Not recorded during the corpus run. No calibrated per-page score exists, and none is estimated here.","human_reviewed":false,"accuracy_context":"Roughly two thirds of characters agree with a modern printed edition of the same text. Much of the disagreement is editorial, not misreading. Treat the transcription as a finding aid and read the page image before quoting.","primary_source":"The page image. The text is an index into it."}}